Harrow.



J. R. SNYDER. HARROW. APPLICATION 111,111) SEPT. 18, 1913.

[I "all!!! III ' To all whom it may concern:

JOHN R. SNYDER, or DALLAS CENTER, Iowa.

HABB'OW.

1,1.os,o13.

Be it known that I, Jo N R. SNYDER, a citizen of the United .States,.residing at Dallas Center, .in the county of Dallas and State of Iowa, haveinvented certain new and useful Improvements in Harrows; and

I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to-which'it appertains to make and use the same.

My invention relates to new and useful improvements in harrows and has for its object the provision of'means for preventing trash and other foreign matter, or lumps of sod, from interfering with the operation of the harrow, as well as to assist the teeth of the harrow in their operation of pulveri'zing the soil.

A further object of my invention is to providea harrow such as described which employs a pair of conical rollers that are loosely mounted adjacent each end of the harrow, and adapted to assist the teeth of the harrow in their operation.

A still further object of my invention is "to provide a harrow of the character described, which is simple as to construction and arrangement of parts, reliable and eflicient in its operation and cheap to manufacture.

The above and additional objects are accomplished by such means as are illustrated in the accompanying drawings described in the following specification and then more particularly pointed out in the claims which are appendedthereto and form part of this application.

\Vith reference to the drawings, wherein I have illustrated the preferred embodiment of my invention as it is reduced to practice, and throughout the several views of which, similar reference numerals designate corresponding parts: Figure 1 is a top plan view illustrating the harrow ofmy improved construction in assembled position; Fig. 2 is a side elevation, Fig. 3 is a cross sectional view taken on line 33 of Fig. 1 illustrating the conical roller and the fastening means therefor, Fig. 4 is a sectional view taken on line 4-4 of Fig. 1, and Fig. 5 is a vertical sectional view taken on line 55 of Fig. 1, illustrating in detail one of the teeth of the harrow and the means of securing the teeth to the harrow frame.

Referring to the drawings the numeral 1 Specification of Letters Patent.

1 Application filed September 18, 1913. Serial No. 790,508.

, Patented Aug. 18, 1914.

designates as an entirety the frame work of the harrow. This frame 1 is of an approximately U shape and constructed of any suitable material. The bight portion 2 of the frame 1 is adapted to support the harrow teeth designated 3 as an entirety, and is provided at each terminal with the curved portions 4, the purpose of which will be hereinafter more fully described. Each of the harrow teeth 3 is provided with a supporting plate 5, which has formed thereon an apertured ear 6, through which the bight portion 2 of the frame 1 is to be inserted. The teeth 3 are arranged'in spaced relation to each other upon the bight portion 2 of the frame 1 and are held in that position by means of the split collars designated? as an entirety. These split collars 7 each consist of a pair of co-acting semi-circular flange clamping plates 8 and 9, that are secured about the bight portion 2 by means of the bolts 10, or othersuitable fastening means. These collars 7 are arranged between the teeth 3 upon the bight portion 2 and secured thereon after the manner described. A break pin 11 is inserted through each of the apertured ears 6 on the bearing plate 5 of the harrow teeth 3, and through the bight portion 2. of the frame 1. It will thus be seen that when the teeth are moved into engagement with a stump, rock, or other obstacle in the path of the harrow, the break pin 11 will snap and thus prevent the teeth from becoming broken.

The means for preventing the accumulation of trash, or lumps of sod adjacent each end of the bight portion 2, consist of a pair of conical rollers designated 12, which are loosely mounted upon the curved portions 4, of the frame 1, adjacent each terminal of the bight portion2. v The U shaped clamping plate 13, is fitted about each curved portion 4, and is adapted to receive a huge plate 14, that is mounted within the U shaped clamping plate 13 and held against removal therefrom by suitable fastening means not shown. The rollers 12 are each provided at their smaller terminals with a tongue portion 16, that is pivotally secured to the hinge plate 14, between a pair of spaced ears 17, formed on the hinge plate, by means of a hinge pin 18, as will be clearly seen with reference to Fig. 3 in the drawing. A screw 19 is inserted longitudinally through each of the rollers 12 and has threaded engagement with the tongue 16 and serves to hold the tongue in operative the field to be operated upon, and the conical rollers 12 carried at each terminal of the bight portion 2 over any accumulation of trash, or lumps of sod that may have collected at" that point and obviously increase the e'lliciency of the harrmv. any..lumpslofidirt or sod-rwill he pulverir zed by the QIClElOIl-Of' the rollers 12, which in. heingpivotally mounted-afterthe manner descrihediare capable ofs'free: move-j I L frame of an ll shape and. provided; at its :bight 1 portion: W.

ment upon the frame. a

It apoarcnt with referenceto the foregoing dos; ription and: accompanyingdrawinns-that a harrow nus been provided which will accomplishalh the functions hereinhefore recited, aud thearrangementv ofxflthe conical rollers, such as described, increases the pulverizlngr action of the harrow. rln reduction to practice, I-havefound that the form of my invention, illustrated iu'the drawings and referred to 111 theiabove description, as the preferred embodiment is the most elficientand practical; yetareal-j iziing that the conditions concurrent,nwith the adoption ofsiny ClGViC6-Wlll necessarily, vary, I desire-to emphasize the! fact that. various minor changes in detailsot construction, proportion and arrange1nent of parts may be resorted: to,.when required, Without sacrificing: any of the advantages of myinvolition, asdefined in theappended claims. .ltla'ving thus described my invention .1 I claim: 1

of theuharrow frame roll said Lt shaped 3; looselynmounted 1 upon: the curved. portion of -:sa 1d frame; a hingeplate mounted Within bytsaid frame adjacent to said teeth.

2. A-harrow comprising a frame, a plurality of teeth mounted upon sa1dfran1e,sa1d

frame curved adjacent its forward terminal, a U shaped clamping plate mounted upon each of the curved portions of said frame, a hinge plate secured. to sai l. U shaped clamp- .inpi-plate and a=pair of conical rollers pivot ally @securedto said whinge plate. i

Awnarrow coinprislngsa fra1ne,,-sa1d hcurved portions, a plurality of teeth mounted upon the hlght; portion of 1'1211116,, 2L clamping plate each of said clamping plates, a pair of CQIllGiIlrlfGllGlS, a; tongue CEL'ITISCl: upon the 1smallera:terminals of. each of said rollers, means: for vremovably securing said tongue to said-rollers.and said tongue pivotally se- 1 cured; to saidrhinge plate.

' l. A harrow comprising a ll-shaped frame,

--a; plurality of teeth mounted upon the central portion of said frame and conical rollers r pivotally carried by said frameadjacent the ends of-Jthe central portlon thereof.

ln-testimonv whereof Iaflixmy signature in presence of. twowitncsses.

JQHN 1R. SNYDER.

Witnesses: 1

S. .Eallamrnn'r, I BERT EMMERT.

\ Copies of t'his-patent maybe obtainecrtorfive=cents eaeln'hy addressing the flominisaioueri ofPaten-ts,

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